The detection of hot cores and complex organic molecules in the Large Magellanic Cloud
We report the first extragalactic detection of the complex organic molecules (COMs) dimethyl ether (CH$_3$OCH$_3$) and methyl formate (CH$_3$OCHO) with the Atacama Large Millimeter/submillimeter Array (ALMA). These COMs together with their parent species methanol (CH$_3$OH), were detected toward two...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
October 2, 2018
|
| In: |
Arxiv
|
| Online Access: | Verlag, kostenfrei, Volltext: http://arxiv.org/abs/1801.10275
|
| Author Notes: | Marta Sewilo, Remy Indebetouw, Steven B. Charnley, Sarolta Zahorecz, Joana M. Oliveira, Jacco Th. van Loon, Jacob L. Ward, C.-H. Rosie Chen, Jennifer Wiseman, Yasuo Fukui, Akiko Kawamura, Margaret Meixner, Toshikazu Onishi, and Peter Schilke |
| Summary: | We report the first extragalactic detection of the complex organic molecules (COMs) dimethyl ether (CH$_3$OCH$_3$) and methyl formate (CH$_3$OCHO) with the Atacama Large Millimeter/submillimeter Array (ALMA). These COMs together with their parent species methanol (CH$_3$OH), were detected toward two 1.3 mm continuum sources in the N 113 star-forming region in the low-metallicity Large Magellanic Cloud (LMC). Rotational temperatures ($T_{\rm rot}\sim130$ K) and total column densities ($N_{\rm rot}\sim10^{16}$ cm$^{-2}$) have been calculated for each source based on multiple transitions of CH$_3$OH. We present the ALMA molecular emission maps for COMs and measured abundances for all detected species. The physical and chemical properties of two sources with COMs detection, and the association with H$_ |
|---|---|
| Item Description: | Version 1 vom 31. Januar 2018, vorläufige Fassung vom 2. Oktober 2018 Gesehen am 22.11.2022 |
| Physical Description: | Online Resource |